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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Garaniya, Vikram
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Topics
Publications (13/13 displayed)
- 2024Classification of pitting corrosion damage in process facilities using supervised machine learningcitations
- 2022Experimental analysis of pitting corrosion in offshore structurescitations
- 2020Pitting corrosion modelling of X80 steel utilized in offshore petroleum pipelinescitations
- 2018Condition monitoring of subsea pipelines considering stress observation and structural deteriorationcitations
- 2017Modelling the impacts of fire in a typical FLNG processing facility
- 2017Modelling the impacts of fire in a typical FLNG processing facility
- 2017Accelerated pitting corrosion test of 304 stainless steel using ASTM G48; Experimental investigation and concomitant challengescitations
- 2017Integrated probabilistic modelling of pitting and corrosion fatigue damage of subsea pipelines
- 2017Pitting degradation modelling of ocean steel structures using Bayesian networkcitations
- 2016Dynamic risk-based maintenance for offshore processing facilitycitations
- 2016Reliability assessment of offshore asset under pitting corrosion using Bayesian Network
- 2016Reliability assessment of offshore asset under pitting corrosion using Bayesian Network
- 2015Modelling of pitting corrosion in marine and offshore steel structures - A technical reviewcitations
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article
Accelerated pitting corrosion test of 304 stainless steel using ASTM G48; Experimental investigation and concomitant challenges
Abstract
Marine and offshore structures constructed with stainless steel are regarded as having high corrosion resistance due to their superior self-passivating properties. However, they are equally susceptible to environmental degradation, especially due to pitting corrosion in highly corrosive marine environments. Pitting immersion tests performed on 304 austenitic stainless steel specimens using ASTM G48 presented significant challenges. Some of the issues encountered during these tests included unspecified experimental factors that control the pitting process such as pH, specimen size limitations, materials? properties, and the variation on the quality of the test solution. To overcome these challenges, the effect of surface finishes and aeration of the test solution on the corrosion behavior of 304 stainless steel specimens in 6% ferric chloride were examined and compared. The result shows that an aerated solution has much lower concentrations of pits compared to quiescent solutions. Controlled aeration eliminates unwanted crevice corrosion background noise. Subsequently, to suit larger specimens, the ASTM G48 was modified. This study presents the modified ASTM G48 procedure. A series of pitting corrosion tests on stainless steel specimen with different thickness were conducted and data were statistically evaluated. The generalized extreme value distribution, such as Weibull, provides adequate statistical descriptions of the pit depth and pit diameter distributions. The modified ASTM G48 offered advantages in the extraction and interpretation of the data for pit characteristics in the accelerated pitting corrosion test simulating actual marine environment.